Mary Ann Arndt, MD

Medicare activity in 2024

Official CMS public-use data for Mary Ann Arndt, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)376 services
2. Hemodialysis procedure with physician evaluation (90935)151 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)89 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)58 services
5. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)34 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Chronic kidney disease75%
• Heart failure65%
• Diabetes55%
• Ischemic heart disease52%

Hospitals where Mary Ann Arndt works

Medicare's Facility Affiliation Data lists Mary Ann Arndt at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Prov Sacred HRT Medical Center & Childs HospitalSpokane, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500054
• Providence Holy Family HospitalSpokane, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500077

Practice locations

Addresses where Mary Ann Arndt is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 W 8th AveSpokane, WA 99204
• 1200 E Columbia AveColville, WA 99114 (509) 684‑3701
• 413 Lilly Rd NEOlympia, WA 98506
• 5633 N Lidgerwood StSpokane, WA 99208 (509) 482‑0111

Group practices

Medicare enrollment lists Mary Ann Arndt as a member of this group (CMS data updated October 2, 2026).

• Providence Health and Services Washington784 clinicians in the group

Specialties

• Nephrologyprimary

Find other Nephrology doctors in Washington →

Other nephrologists in Spokane

Clinicians with the same Medicare primary specialty in Spokane, WA — not a recommendation.

• Krishna M. Malireddi, MD
• Vijayakumar K. Reddy, MD
• Satinder Singh, MD
• Samer Abdulkhalek I, MD
• Nelson Chow, MD
• Kathrine R. Tuttle, MD
• Nora H. Hernandez Garcilazo, MD
• Louis W. Cotterell, MD

All nephrologists in Spokane →

Other clinicians in Providence Health and Services Washington

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Megan C. Bisbee
• Janelle Hanni
• Mark E. Gaulke, MD
• Michael P. Bell, PA
• Rita M. Snow, MD
• Shamit D. Tailor, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians